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Problem Category ▴ Points AC % Users
CCC '20 S2 - Escape Room CCC 12p 14.1% 14
CCC '19 S3 - Arithmetic Square CCC 15p 7.4% 4
CCC '21 S1 - Crazy Fencing CCC 5 45.8% 25
CCC '21 S3 - Lunch Concert CCC 10p 52.6% 9
CCC '21 S4 - Daily Commute CCC 12p 21.9% 6
CCC '21 S5 - Math Homework CCC 12p 41.7% 7
CCC '21 S2 - Modern Art CCC 7p 31.7% 13
CCC '20 S3 Easy - Searching for Strings CCC 12p 64.0% 12
CCC '20 S3 - Searching for Strings CCC 15p 16.0% 12
Count Divisors Club 5 25.3% 22
Sum of Occurrences Club 3 20.4% 24
A Sum Problem Club 5 23.6% 32
A Prime Problem Club 12 1.4% 2
A Math Problem (Easy) Club 7 30.2% 18
Iceberg Hopping Club 10p 12.4% 10
Close Matchups Club 7p 26.5% 9
Point of Intersection Club 10p 14.4% 8
Public Service Announcement Club 7p 38.1% 17
A Difference Array Problem Club 7p 37.0% 9
Graph Theory: Intro Club 5 46.3% 20
Graph Theory: Connectivity Club 10 34.5% 20
Graph Theory: Shortest Path Club 10 36.9% 19
Graph Theory: Weighted Graph Club 12 17.3% 10
Fibonacci 1 Club 5 50.9% 27
Perfectly Even Numbers Club 5 22.6% 15
Perfectly Even Numbers (Extreme) Club 15 14.9% 9
Fibonacci 2 Club 7 28.5% 18
Making a Necklace Club 10p 28.6% 7
Placing Kings Club 10p 61.9% 12
A Fenwick Tree Problem Club 15p 14.2% 8
A Binary Search Problem Club 7 19.8% 9
Allen's Graph Club 7 30.8% 11
A Dynamic Programming Problem Club 20 3.8% 2
CBOJ 2022 Welcome Contest Problem 3 - Suspicious Cells Club 5 68.2% 11
CBOJ 2022 Welcome Contest Problem 2 - First Day of School Club 5 28.9% 10
CBOJ 2022 Welcome Contest Problem 1 - Kernel Bye Computer Science Lovers Club 3 46.7% 18
CBOJ 2022 Welcome Contest Problem 4 - Highest Weight Path Club 7p 20.6% 8
CBOJ Exec Selection Contest 2 Problem 4 - George's Graph Club 10 24.2% 3
CBOJ Exec Selection Contest 2 Problem 3 - Anita's Array Club 7 11.3% 5
CBOJ Exec Selection Contest 2 Problem 5 - Obligatory Data Structure Problem Club 12 12.5% 3
CBOJ Exec Selection Contest 2 Problem 2 - Patryk and Primes Club 5 27.1% 9
CBOJ Exec Selection Contest 2 Problem 1 - Vowels Club 3 37.2% 12
ECOO 2016 R2 P1 - Palindrome Panic ECOO 12 73.3% 4
ECOO 2015 R1 P4 - Neanderthal Numbers ECOO 12 68.2% 7
ECOO 2018 R2 P3 - Factorial ECOO 12 36.8% 5
WAC - The Almighty Acorn WAC 35p 11.4% 2
WAC - Snow Day Predictor WAC 3 53.2% 21
WAC - Triangle: The Root of All Evil WAC 15p 71.4% 3
WAC - Squirrel Election WAC 7p 14.7% 8